Holding jig, measurement device and holding device using the same

Abstract

A holding jig including, a tilt angle with respect to a plane of a holding surface of a holding target defined as a holding tilt angle: a first holding portion having a holding tilt face with the holding tilt angle; a second holding portion connected to the first holding portion so as to slide toward the holding tilt face along a plane substantially parallel to the holding surface; and an elastic holding portion provided at a position of the second holding portion facing the holding tilt face that is elastically deformed towards the holding surface by the holding tilt face while being abutted to the holding tilt face, when the second holding portion slides toward the holding tilt face, to press and hold the holding target.

What is claimed is: 
     
       1. A holding jig comprising a first holding portion, a second holding portion, an elastic holding portion and a slide mechanism;
 wherein the second holding portion is configured to move towards the first holding portion along a plane substantially parallel to a holding surface of a holding target; 
 wherein the elastic holding portion is provided at a tip position of the second holding portion; 
 wherein at least a part of a surface of the first holding portion and at least a part of a tip portion of the elastic holding portion each have a tilt face, respectively; 
 wherein the tilt face of the elastic holding portion is configured to move along the tilt face of said surface of the first holding portion while abutting therewith when the elastic holding portion is slid along said tilt faces; and 
 wherein the tip portion of the elastic holding portion is configured to hold the holding target by directly contacting and thus applying pressure on the holding surface of the holding target generated by an elastic deformation of the elastic holding portion that results from being pressed between the tilt face of said surface of the first holding portion and the holding surface of the holding target before the tip portion of the elastic holding portion reaches a low end portion of the tilt face of said surface of the first holding portion. 
 
     
     
       2. The holding jig according to  claim 1 , wherein the tilt face of the first holding portion and the elastic holding portion are provided at positions facing the holding surface and in shapes corresponding to the holding surface in a plane vertical to a slide direction in a case where the slidable direction of the second holding portion is defined as the slide direction. 
     
     
       3. The holding jig according to  claim 1 , wherein in a plane vertical to a slide direction, a holding tilt angle is increased or decreased in the slide direction in accordance with the size of a curvature radius of the sectional shape of the holding surface. 
     
     
       4. The holding jig according to  claim 1 , wherein the tilt face of the first holding portion and the elastic holding portion are provided in a ring shape, and
 the holding surface of the holding target is configured to be air-tightly held by the elastic holding portion over the whole periphery thereof. 
 
     
     
       5. A measurement device, wherein a pair of holding jigs according to  claim 4  are used as a first holding jig and a second holding jig,
 the measurement device comprising: 
 fluid passing means driven so that the fluid passes through a through channel of the holding target having an inflow end face through which the fluid flows into the holding target, an outflow end face through which the fluid flows out of the holding target and the through channel through which the fluid flows inwardly and outwardly in the holding target; and 
 through channel characteristic measurement means for measuring through channel characteristics of the fluid passing through the holding target, 
 wherein the through channel characteristics of the fluid generated during the passing of the fluid are measured by the through channel characteristic measurement means while air-tightly holding the holding surface of the holding target over the whole periphery of the side surface thereof on the side of the inflow end face by the first holding jig and while air-tightly holding the holding surface of the holding target over the whole periphery of the side surface thereof on the side of the outflow end face by the second holding jig. 
 
     
     
       6. The measurement device according to  claim 5 , further comprising:
 a pair of pressure measurement means provided as the through channel characteristic measurement means on the inflow end face side and the outflow end face side, 
 wherein a pressure loss generated during the passing of the fluid through the holding target is measured by a pressure difference measured by the pair of pressure measurement means. 
 
     
     
       7. A holding device in which the holding jig according to  claim 1  is provided in a support portion, wherein the holding jig holds the holding target. 
     
     
       8. The holding device according to  claim 7 , comprising:
 the support portion provided with the at least one holding jig; and 
 a pressing jig provided in the support portion and disposed at a position facing the holding tilt face of the at least one holding jig, 
 wherein the holding target is held by the holding jig and the pressing jig.